-sub unimport {
- (undef, my $type) = @_;
- $^H{indirect} = (defined $type and $type eq ':fatal') ? 2 : 1;
-}
+=head1 CONSTANTS
+
+=head2 C<I_THREADSAFE>
+
+True iff the module could have been built when thread-safety features.
+
+=head1 CAVEATS
+
+The implementation was tweaked to work around several limitations of vanilla C<perl> pragmas : it's thread safe, and doesn't suffer from a C<perl 5.8.x-5.10.0> bug that causes all pragmas to propagate into C<require>d scopes.
+
+C<meth $obj> (no semicolon) at the end of a file won't be seen as an indirect object syntax, although it will as soon as there is another token before the end (as in C<meth $obj;> or C<meth $obj 1>).
+
+With 5.8 perls, the pragma does not propagate into C<eval STRING>.
+This is due to a shortcoming in the way perl handles the hints hash, which is addressed in perl 5.10.